2-((2S,3R,5R)-2-((bis(4-methoxyphenyl)(phenyl)methoxy)methyl)-5-(5-methyl-2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)tetrahydrofuran-3-yl)-N-(((2R,3S,5R)-3-hydroxy-5-(5-methyl-2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)tetrahydrofuran-2-yl)methyl)acetamide

3'-C-[N-[N-(2-Trifluoroacetylaminoethyl)]-6-carbamoylhex-2(Z)-enyl]-3'-deoxythymidine

3'-C-(2-Azidoethyl)-3'-deoxythymidine

5'-O-(tert-butyldiphenylsilyl)-3'-C-methylene-N-oximyl-3'-deoxythymidine